Add unit tests for getAllUsagePlans

lambdas/shared/__tests__/get-all-usage-plans-test.js

@@ -0,0 +1,106 @@
+const { getAllUsagePlans } = require('../get-all-usage-plans')
+
+const promiser = require('../../setup-jest').promiser
+
+const mockUsagePlanItem = () => ({
+  id: '1a2b3c',
+  name: '1a2b3c',
+  apiStages: [
+    {
+      apiId: 'anmlcrckrs',
+      stage: 'prod',
+    },
+    {
+      apiId: 'jlpnochips',
+      stage: 'beta',
+    },
+  ],
+  throttle: {
+    burstLimit: 10,
+    rateLimit: 10,
+  },
+  quota: {
+    limit: 10000,
+    offset: 0,
+    period: 'DAY',
+  }
+})
+
+describe('getAllUsagePlans', () => {
+  test('returns all usage plans, when none exist', async () => {
+    const mockApiGateway = {
+      getUsagePlans: jest.fn().mockReturnValueOnce(promiser({
+        items: []
+      }))
+    }
+
+    const result = await getAllUsagePlans(mockApiGateway)
+    const mocked = mockApiGateway.getUsagePlans.mock
+    expect(mocked.calls.length).toBe(1)
+    expect(mocked.calls[0][0]).not.toHaveProperty('position')
+    expect(result).toHaveLength(0)
+  })
+
+  test('returns all usage plans, when only one page of usage plans exists', async () => {
+    const mockApiGateway = {
+      getUsagePlans: jest.fn().mockReturnValueOnce(promiser({
+        items: [
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+        ]
+      }))
+    }
+
+    const result = await getAllUsagePlans(mockApiGateway)
+    const mocked = mockApiGateway.getUsagePlans.mock
+    expect(mocked.calls.length).toBe(1)
+    expect(mocked.calls[0][0]).not.toHaveProperty('position')
+    expect(result).toHaveLength(4)
+  })
+
+  test('returns all usage plans, when multiple pages of usage plans exist', async () => {
+    const mockApiGateway = {
+      getUsagePlans: jest.fn().mockReturnValueOnce(promiser({
+        items: [
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+        ],
+        position: 'qwertyuiopasdf%3D%3D',
+      })).mockReturnValueOnce(promiser({
+        items: [
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+        ],
+        position: 'zxcvbnm1234567%3D%3D',
+      })).mockReturnValueOnce(promiser({
+        items: [
+          mockUsagePlanItem(),
+          mockUsagePlanItem(),
+        ],
+      }))
+    }
+
+    const result = await getAllUsagePlans(mockApiGateway)
+    const mocked = mockApiGateway.getUsagePlans.mock
+    expect(mocked.calls.length).toBe(3)
+    expect(mocked.calls[0][0]).not.toHaveProperty('position')
+    expect(mocked.calls[1][0]).toHaveProperty('position', 'qwertyuiopasdf%3D%3D')
+    expect(mocked.calls[2][0]).toHaveProperty('position', 'zxcvbnm1234567%3D%3D')
+    expect(result).toHaveLength(10)
+  })
+
+  test('passes through an API Gateway request error', async () => {
+    const expectedError = {}
+    const mockApiGateway = {
+      getUsagePlans: jest.fn().mockReturnValueOnce(promiser(null, expectedError))
+    }
+
+    await expect(getAllUsagePlans(mockApiGateway)).rejects.toStrictEqual(expectedError)
+  })
+})